Fluid-fuel burner



June 16, 1925.

vy. E. BAKER FLUID FUEL BURNER Original Filed Jan. 25, 1924 2 Sheets-Sheet 1 June 16, 1925.

W, E. BAKER FLUID FUEL BURNER Original Filed Jan. 25, 1924 2 Sheets-Sheet 1 I l l I l I II oooq; 0000 N Patented June 16, .1925.

PATENT OFFICE.

'WILLIA E. KER, or ERIE, rnnnsvtvsnm, ASSIGNOR To WEBB-ENGINEERING QOMPANY, or ERIE, PENNSYLVANIA, A common-LA TRUST.

FLUID-FUEL BURNER.

Original application filed January 25,

To 015 to 710m it may concern Be it known thatI, WILL AM E; BAKER, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, .have invented certain new 3 and useful Improvements in Fluid-Fuel Burners and I do hereby declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which it appertains to make and use the same, referencebeing;had to. the accompanying drawings, and to the letters of reference marked thereon, forminn part of this specification,

This is adivisional application, the original ap lication being filed January 25, 1924, Serial No. 688,550. r

This invention relates to fluid fuel burners adapted to be operated; by pump and fan mechanism shown and described in my said application.

.The object of thisinvention is to provide a burner apparatus which requires a pressure of-fluid sun only slightly above atmospheric; to provide in such a burner .means for generatinga vapor from fuel oil; to provide means for .inixing air with such vapor essential for proper combustion, and to provide in such apparatus a pilot burner having a separate source of fuel and adapted to start the operation of said apnaratus.

These and other features of my invention are hereinafter described andpointed out and are illustrated in. the accompanyingdrawingsyin which; a c Figure 1, is a plan view of the face of my improved burner mechanism. Figure 2, is an end elevation of the same. Figure 3, is a central longitudinad section of the same.

Figure 4, is a like section of the pilot burner..removed from the main. burner.

Figure 5, is a fragmentary sectional detail showing the burner nipples.

Figure 6, is a diagrammatic drawing illustrating my improved 'fued burner apparatus connected to apump and fan mechanism of the type shown in my said application, suitable for supplying oil and air thereto.

In these drawings A indicates a mixing chamber which is enclosed in metallic walls.

A see'Fig. 3, indicates the bottom plate of,

said chamber which isprovided with burner .1924, Serial No. 688,550. Divided and this application filed August 28, 1924. Serial No. 734,719.

, nipples B. secured therein in any suitable terial, through which the combustion gas flows to ignition.

The bottom plate A is provided with a pilot receiving chamber, C, which is sealed from the mixing chamber A so that gas will not flow thereto from said mixing chamber. D indicates an air conducting pipe which is connected to a fan D associated with an oil pump mechanism D see Fig. 6, as shown and described in my said application, said air pipe extending into the mixing chamber A of my improved burner, as shown in Fig. 3. "The inner end of this air pipe is formed to guide the current of air away from the bottom plate A.

Suspended adjacent to the outer ends of some of the burner nipples B, and adjacent to the outer face of the. pilot burner, when in placein the pilot recess C is a vapor generating tube E, which leads to an oil pump D see Fig. 6, the opposite end of said tube E passing through the bottom plate A of the mixing chamber A, and transversely through the walls of the air pipe D adjacent to its inner end, and is secured to the upper wall of said mixing chamber by means of a screw plug E. The wall of the generator tube E, within the pipe D is provided with perforations 6,

through which vapor, generated within the tube E passes into the pipe D, where it is taken up by the current of air entering through said pipe and carried into the cham-' ber A where it becomes thoroughly mixed therewith and forms a highly combustible gas.

To facilitate the mixing of the air and vapor, thewall of the pipe D adjacent toits inner end is provided with perforations d, through which air and vapor can pass before the exit end of said pipe is reached.-

The pilot burner, see Fig. 4, consists of a .mixing chamber F enclosed in metallic walls, and adapted to fit into the pilot recess C. The bottom plate F of the mixing chamber F is provided with burner nipples G similar to the nipples B. I provide a fun nel shaped tube H which is secured in an end plate of the pilot mixing chamber F for the admission of air and vapor.

Suspended adjacent to the pilot nipples G is a generator tube I, one end thereof leading to the jet tube I, which is adapted to direct the flow of vapor through said funnel tube H, into said mixing chamber F, which vapor as it passes into said mixing chamber drawing along with it a sufficient amount of air, to transfer said vapor into a combustible gas, which can be ignited as it flows out of said nipples. The opposite end of said generator tube is connected to a sup ply tank J, see Fig. 6, so that the pilot burner does not de end upon the operation of the fan I) and pump D for itsfuel.

The flow of vapor through the jet tube I is controlled and regulated by needle valvescrew J, see Fig. 4.

The plate A is covered with a layer of asbestos, or other suitable material, through which the nipples B project. Also the plate F of the pilot burner is co ered with a layer of asbestos, the nipples G projecting therethrough, so that said plates are protected from excessive heat.

In operation the pilot burner is started by the application of external heat, as by a flame from a torch, and fluid fuel allowed to flow from the tank J into the tube I, which causes vapor to be generated in said tube, which flows through jet-tube I into the pilot mixing chamber F, the vapor drawing air into said chamber through the funnelshaped tube H, which mixes with the vapor and forms a combustible gas, which flows through the pilot burner nipples G where it ignites, the flame therefrom impinging upon the tube I, which continues the generation of vapor therein. The pilot flames also impinge upon that portion of the tube E which passes over the face of the pilot burner so that when the fan and pump mechanism see Fig. 6, is started in operation, fuel oil is forced to flow through the generator tube E in which vapor is generated which flows through the perforations 6 within the air pipe D. At the same time air is supplied to the pipe from the fan D, which carries the vapor from the perforations 6, into the mixing chamber A, and the combustible gas formed thereby flows through the nipples B and ignites from the pilot burner, the flames from the nipples B impinging on the tube E thereby generating vapor therein. The

needle-valve screw J can be adjusted to regulate the flame of the pilot burner as may be desired.

While I have shown my improved burner mechanism in rectangular form, it is obvious that the same can be made in any form desired without departing from the scope of my invention.

Having thus fully described the construction and operation of my invention so that others can utilize the same, what I claim as new and desire to secure by Letters Patent 1s:

1. In a liquid fuel burner, a mixing chamber, burner nipples in the bottom thereof, an air conveying pipe extending into said mixing chamber, a generator tube suspended adjacent to said nipples to receive the flame therefrom and thence passing transversely through said mixing chamber and through the walls of said air conveying pipe, said tube being perforated within said air conveying pipe.

2. In a fluid fuel burner, a mixing chamber, burner nipples in the bottom thereof, an air conveying pipe extending into said chamber, means on said pipe to guide air away from said nipples, a generator tube suspended adjacent to said nipples to receive the flame therefrom and thence passing transversely through said chamber and the wall of said pipe, said tube being perforated within said air conveying pipe.

3. In a fluid fuel burner,a mixing chamber, a perforated bottom plate therein, burner nipples secured in said plate, an air conveying pipe extending into said mixing chamber, a pilot burner secured in said bottomplate having a separate mixing chamber, burner nipples secured in the bottom of said pilot burner, a generator tube suspended adjacent to the pilot burner nipples, a jet tube connected to said generator tube adapted to direct vapor and air into said pilot mixing chamber, and another generator tube suspended adjacent to said pilot burner nipples and said burner nipples and passing transversely through said burne1 mixing chamber, and through the wall of said air pipe, said generator tube being perforated within said air pipe.

In testimony whereof I affix my signature.

WILLIAM E. BAKER. 

